xtremerat | 567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1

General

Target

567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe
Size

160KB
MD5

0e31db04153b69301c0bddc6ce225b7d
SHA1

2b5b28203b193c2bf12fe2674217c6490d300b9a
SHA256

567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1
SHA512

eb7863dd9d6fb2b0d631315eeb20d07fc6e8ac50ca50cebc8a5d36d73d421cd6e05012925ce19f403c119b139b233813a0add75de37f6eebcb1d35530a0221b8
SSDEEP

1536:y8bw9gC2LBsuc3+yepJW8Hf6tLzvLoxAd3WsHU6mDWTSsP27o01M:6gCOO3+zpfHgLfow3W0U6aUj01M

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

b3efpwn.no-ip.biz

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/4836-134-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/4836-135-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/4836-136-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/3284-137-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/4836-138-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/3284-139-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1008	3284	WerFault.exe	82
3764	3284	WerFault.exe	82

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 2012 wrote to memory of 4836	2012	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	81
PID 4836 wrote to memory of 3284	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	82
PID 4836 wrote to memory of 3284	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	82
PID 4836 wrote to memory of 3284	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	82
PID 4836 wrote to memory of 3284	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	82
PID 4836 wrote to memory of 4352	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	83
PID 4836 wrote to memory of 4352	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	83
PID 4836 wrote to memory of 4352	4836	567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe	83

C:\Users\Admin\AppData\Local\Temp\567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe
"C:\Users\Admin\AppData\Local\Temp\567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe
  "C:\Users\Admin\AppData\Local\Temp\567500b59ed387275adcf582e0cf72385ad7d50bf76309e1970233f7910b61d1.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:3284
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 480
      4⤵
      Program crash
      PID:1008
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 488
      4⤵
      Program crash
      PID:3764
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3284 -ip 3284
1⤵
PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3284 -ip 3284
1⤵
PID:3748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3284-139-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4836-135-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4836-136-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4836-138-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download

Analysis

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